Log apparent melt viscosity



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oiiice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED DECEMBER 16, 1969 T869,014 APPARATUS AND IMPROVED METHOD FOR CON- TINUQUSLY DETERMINING APPARENT MELT VISCOSITY OF A THERMOPLASTIC POLYMER Theodore F. Gray, In, and Robert L. Combs, both of R0. Box 511, Kingsport, Tenn. 37662 Continuation of application Ser. No. 729,287, May 15, N68. This application July 30, 1969, Ser. No. 847,822 Int. Cl. G0ln 11/04 U.S. CI. 73-56 6 Sheets Drawing. 21 Pages Specification DlSPLACEMENT mausuuczk an ER w SUPPLV LG},

JUN POWER SUPPLY Dec. 16, 1969 T. F. GRAY. JR. ET AL T369014 APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMINING APPARENT MELT VISCOSITY F A THERMOPLASTIC POLYMER 0 Original Filed May 15, 1968 6 Sheets-Sheet l BYMMJJQMA mmw ATTORNEYS Dec. 16. 1969 T. F. GRAY, JR.. ETAI- T869914 APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMIHING APPARENT MELT VISCOSITY OF A THERMOPLASTIC POLYMER Original Filed May 15, 1968 6 Sheets-Sheet 2 rF W zpzz THEODORE E GRAY, JR.

ROBERT L. COM BS INVENTORS ATTOR NEYS Dec. 16. 1969 GAY,JR.. ETI'AL T869314 F. APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMINING APPARENT MELT VISCOSITY F A THERMOPLASTIC POLYMER 0 Original Filed May 15, 1968 6 Sheets-Sheet B MELT PLUNGER DISPLACEMENT, CM.

8 MELT PLUNGER LOAD 12006.

6 BISPHENOL A POLYCARBONATE INHERENT V|SCOS|TY= 0.63 5 TEMPERATURE PROGRAM RATE= 3C./MIN. 4 TIME INTERVAL=| MIN.

O- .J .I L 1 TEMR, C.

RATE OF MELT PLUNGER FALL,

CM./M|N.

L5 BISPHENOL A POLYCARBONATE INHERENT VISCOSITY= 0.63 TEMPERATURE PROGRAM l RATE= 3C./M|N.

MELT PLUNGER LOAD I200 G. 0.5

TEM P., C

THEODORE F. GRAY, JR. ROBERT L. COMBS ATTORNEYS Dec. 16, 1969 F. GRAY. JR.. ET AL T869,014

APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMINING APPARENI' MELT VISCOSITY OF A THERMOPLASTIC POLYMER Original Filed May.l5. 1968 6 Sheets-Sheet 4 L06 APPARE NT MELT VISCOSITY BISPHENOL A POLYCARBONATE 450- INHERENT VlSCOSITY= 0.63

TEMR, C. PLOTTED ON RECIPROCAL ABSOLUTE TEMPERATURE SCALE LOG APPARENT MELT VISCOSITY F BISPHENOL A POLYCARBONATE 253 24s INHERENT VISCOSITY= 0.63

l l I I 0.60 0.20 0.20 0.60 [.00 L40 L06 SHEAR RATE FEES THEODORE F GRAY, JR. ROBERT L. COMBS INVENTORS BY/JMJEZZML vvwzwam 9W9 ATTORN EYS 1959 T. F. GRAY, JR, ETAL T869,014

APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMINING APPARENT MELT VISCOSITY OF A THERMOPLASTIC POLYMER Original Filed May 15, 1968 6 Sheets-Sheet 5 L06 APPARENT MELT VISCOSITY 5 lo BISPHENOL A POLYCARBONATE INHERENT VISCOSITY=0.63

SHEAR RATE= 3.0 sec- 4.90

302 276 253 232 TEMR, c PLOTTED ON RECIPROCAL ABSOLUTE TEMPERATURE SCALE MELT VISCOSITY,

FPOISE l0 SHEAR RATE= 2.0 s|:c.-

flllT I0 I0 I 1 302 289 276 265 253 242 232 222 TEMP.,C PLOTTED ON RECIPROCAL ABSOLUTE TEMPERATURE SCALE THEODORE F GRAY, JR. ROBERT L. COMBS IN VENTORS ATTORNEYS Dec. 16, 1969 T. F. GRAY. JR ETAL T869,014

APPARATUS AND IMPROVED METHOD FOR CONTINUOUSLY DETERMINING APPARENT MELT VISCOSITY OF A THERMOPLASTIC POLYMER Original Filed May 15, 1968 6 Sheets-Sheet s THEODORE F. GRAY, JR. ROBERT L. COMBS INVENTORS ATTORNEYS 

